Which model represents data in the form of tables? MCQ with Answer and Explanation

Explanation:
The ROLLBACK command is a TCL statement used to undo transactions, restoring the database to its last committed or safe state.

Explanation:
DBMS generally involves higher initial costs and complexity compared to simple file systems, though it offers better control over redundancy, independence, and security.

Explanation:
Atomicity ensures that all operations within a transaction are completed successfully; otherwise, the transaction is aborted and all changes are rolled back.